Find the AI in any text, then rewrite it, right in the app you're writing in: your browser, Word and Excel, and soon Google Docs.
On Firefox? Its version is in review at Firefox Add-ons, coming soon.
Free for 10 checks or rewrites an hour. No account needed.
Your text95% AI
Ultimately, this seamless transition unlocks a rich tapestry of possibilities for teams of all sizes, empowering everyone to thrive in an ever-evolving landscape.
p3n's rewrite1% AI
This transition helps teams of all sizes.
Each one checks the text you select, shows the sentences that give it away, and rewrites it in place.
Select text on any page, right-click and pick p3n, then Check for AI. The score, the reasons and a rewrite open in the side panel, and Replace puts the rewrite where your text was.
From the Chrome Web Store. Edge and Brave install it from there too.
In review, coming soon. The same extension, in Firefox's sidebar, for Firefox 140 or later.
Select text in Word, or cells in Excel, and click Check for AI on the Home tab. Replace puts the rewrite back with each paragraph's style, and Ctrl+Z undoes it.
p3n isn't in Microsoft's add-in store yet, so you add it once from this file. It loads from the web after that, so it updates by itself.
~/Library/Containers/com.microsoft.Word/Data/Documents/wef (for Excel, com.microsoft.Excel; make the wef folder if it's missing). Restart the app, then Home › Add-ins › p3n. Microsoft's stepsSelect text in a doc and open Extensions › p3n. Check and rewrite in the sidebar; Replace selection keeps headings, lists and formatting, and one Ctrl+Z undoes it.
Coming soon. The add-on is in Google's review for the Workspace Marketplace.
Your text goes to api.p3n.si only when you click. No history, no analytics.
10 checks or rewrites an hour without an account, up to 5,000 characters each. For more, make an API key at p3n.si and paste it into the app.
Every app is MIT-licensed on GitHub: the browser extension, the Word and Excel add-in and the Google Docs add-on.